function _$(obj){
	return document.getElementById(obj);
}
function replyto(pid, position){
	_$('replyto').value = pid;
	_$('reply_action').innerHTML = "回复给：" + position + ' 楼 &nbsp; <a href="javascript:;" onclick="cancel_replyto()">取消</a>';
	_$('contents').focus();
}
function cancel_replyto(){
	_$('replyto').value = 0;
	_$('reply_action').innerHTML = "快速回帖";
}